CN110118855A - A kind of test method for evaluating detergent decontamination effect - Google Patents
A kind of test method for evaluating detergent decontamination effect Download PDFInfo
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- CN110118855A CN110118855A CN201910374340.3A CN201910374340A CN110118855A CN 110118855 A CN110118855 A CN 110118855A CN 201910374340 A CN201910374340 A CN 201910374340A CN 110118855 A CN110118855 A CN 110118855A
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- detergent
- fabric
- spot
- washing
- decontamination effect
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/29—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using visual detection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
Abstract
The invention discloses a kind of test methods for evaluating detergent decontamination effect.1) pollutant the following steps are included: be infected in fabric surface, the pollution fabric of obtained spot contamination by this test method；2) prepare wash mill, including fixing piece, blender and washing container；3) water and detergent to be measured are added in the washing container of wash mill, are stirred, obtain detergent solution；4) fabric being polluted with the fixing piece of wash mill to be fixed in washing container, making detergent solution submergence pollution fabric, be then followed by stirring and washing, the spot situation of change of observation pollution fabric evaluates decontamination effect of detergent.Test method of the invention have many advantages, such as it is intuitive, quick, easy to operate, convenient for show.Using test method of the invention, it can be estimated that the height of detergent dirt-removing power, show detergent decontamination effect, can also be declared with preliminary assessment containing protease, amylase detergent the effect of.
Description
Technical field
The invention belongs to detergent detergency ability detection technique fields, and in particular to a kind of evaluation detergent decontamination effect
Test method.
Background technique
Detergent removes the ability of spot, is that one of index for characterizing detergent scourability and consumer choose and wash
Wash the very important reference frame of agent.The detergency ability evaluation of laundry detergent compositions mainly has laboratory method and true washing at present
The methods of.
Laboratory evaluation method is held by GB/T 13174 " dress material detergent detergency and the measurement for recycling scourability "
Row is configured to determine the detergent of concentration with the water of certain degree of hardness in detergency test machine under predetermined temperature and wash time
Solution washs all kinds of spot test pieces, and measures the whiteness value before and after test piece is washed under selected wavelength with leucometer.With
The decontamination of test piece whiteness difference evaluation detergent.This method is the market access threshold of objective measure detergent, but because
The otherness of the diversity of dirt and cloth base material matter in real life, only with the more difficult comprehensive reflection detergent of several national standard soiled cottons
To the dirt-removing power of dirt, so its evaluation result may be deviated with the practical decontamination situation of detergent.And presence makes
With relatively large equipment, complicated for operation, result it is not intuitive, be not suitable for the problems such as showing.
Usually used in existing literature report is Actual laundering method, is washed using hand washing rubbing, washing of drum type washing machine form
Practical spot on polyester fabric, then detergent detergency is evaluated by the difference on effect of comparison spot washing front and back, method is deposited
In the relatively large instrument and equipment of use, complicated operation, is not suitable for the problems such as showing.
There are some detergent manufacturers to will use the form of stirring cup simulation washing to show detergency ability, method is same
In the presence of it is not intuitive, not objective the problems such as.
Summary of the invention
It is not intuitive, multiple using large scale equipment, operation present in prior art evaluation detergent decontamination effect in order to overcome
It is miscellaneous, be not suitable for the problems such as showing, the purpose of the present invention is to provide a kind of novel intuitive evaluation detergent decontamination effects
Test method.This method can intuitively evaluate the dirt-removing power of detergent, can be used for demonstrating or show, and can
Preliminary assessment declare containing protease, amylase detergent the effect of.
In order to achieve the above purpose, the technical solution used in the present invention is:
A kind of test method for evaluating detergent decontamination effect, comprising the following steps:
1) the pollution fabric of preparation spot contamination
By pollutant contamination in fabric surface, the pollution fabric of spot contamination is made；
2) prepare wash mill
Prepare wash mill, the wash mill includes fixing piece, blender and washing container；
3) detergent solution is prepared
Water and detergent to be measured are added in the washing container of wash mill, is stirred, obtains detergent solution；
4) test evaluation
Fabric will be polluted with the fixing piece of wash mill to be fixed in washing container, knits detergent solution submergence pollution
Then object is followed by stirring and washing, the spot situation of change of observation pollution fabric evaluates decontamination effect of detergent.
Preferably, in the test method step 1) of this evaluation detergent decontamination effect, pollutant is infected with the mode of fabric
Selected from one of coating, dip dyeing, dropwise addition or a variety of；Wherein, the method for coating is selected from spraying, showering, roller coating, spin coating, trowelling
One of or it is a variety of.
Preferably, it is this evaluation detergent decontamination effect test method step 1) in, pollutant be selected from oil pollutant,
One of starch pollutant, albumen pollutant are a variety of.
Preferably, in the test method step 1) of this evaluation detergent decontamination effect, the material of fabric be selected from cotton, fiber crops,
One of wool, silk, chemical fibre, blended are a variety of；It is further preferred that the material of fabric is selected from cotton, fiber crops, chemistry fibre
One of dimension, blended are a variety of.
Preferably, in the test method step 1) of this evaluation detergent decontamination effect, the shape of fabric be selected from it is round or
Person's rectangle；Most preferably, the shape of fabric is circle.
In the test method step 1) of this evaluation detergent decontamination effect, the color of fabric can be selected from the colour system of light color,
Make obvious with the color difference of pollutant, contrast is more preferable, and observation is facilitated to compare；Preferred fabric color is white or rice white.
Preferably, in the test method step 1) of this evaluation detergent decontamination effect, the spot that pollutant is formed is located at
The center of fabric.
Preferably, in the test method step 1) of this evaluation detergent decontamination effect, the area of spot accounts for the total face of fabric
Long-pending 10%~80%；It is further preferred that the area of spot accounts for the 20%~50% of the fabric gross area.
Preferably, in the test method step 1) of this evaluation detergent decontamination effect, the spot face of pollution fabric contamination
Product is 5cm2~50cm2；It is further preferred that the spot area of pollution fabric contamination is 10cm2~30cm2。
Preferably, in the test method step 1) of this evaluation detergent decontamination effect, the shape of spot is round, oval
Shape or rectangle；Most preferably, the shape of spot is round or oval；Wherein, when spot is round, the center of circle of spot with
The center of fabric is identical；Further, when fabric is round, the center of circle of fabric and the center of circle of spot are identical.
Preferably, in the test method step 1) of this evaluation detergent decontamination effect, the spot matter of pollution fabric contamination
Amount is 0.01g~2g；It is further preferred that the spot quality of pollution fabric contamination is 0.05g~0.5g.
Preferably, in the test method step 1) of this evaluation detergent decontamination effect, pollutant is infected in fabric table
Further include the steps that standing behind face；The time of standing is 1 minute~14 days；It is further preferred that the time stood is 30 minutes
~2 hours；Further, standing is to carry out at normal temperature, can also be stood in a heated condition, such as at 40 DEG C~60 DEG C
It stands.
Preferably, in wash mill described in the test method of this evaluation detergent decontamination effect, blender is selected from magnetic
Any one in power blender, cantilever blender；Most preferably, blender is magnetic stirring apparatus.
Preferably, in wash mill described in the test method of this evaluation detergent decontamination effect, fixing piece includes one
A fixture and two hollow locating pieces；Pollution fabric can be fixed between two hollow locating pieces, and be fixed with fixture.
When fixed, the spot for polluting fabric is placed in the hollow position of locating piece.The hollow reason of locating piece makes to be located at fabric center
Spot is contacted with detergent solution, convenient for the clean effect of observation washing.
It is further preferred that locating piece hollow described in this fixing piece is selected from annulus or rectangle frame；Most preferably,
Hollow locating piece is annulus.
It is further preferred that locating piece hollow described in this fixing piece is made using transparent material, such as using transparent
Plastics be made.
In some preferred embodiments, fabric uses circular fabric, and the spot for polluting fabric is circle, hollow
Locating piece is tested using annulus；Wherein, diameter of a circle is greater than the diameter of spot in pollution fabric and is less than pollution in annulus
The diameter of fabric；Diameter of the outside diameter of annulus not less than pollution fabric.
Preferably, when hollow locating piece is annulus, the interior circular diameter of annulus is 2mm~4mm, the outside diameter of annulus
For 4mm~6mm；Still further preferably, the interior circular diameter of annulus is 3.5mm~4mm, the outside diameter of annulus be 4.5mm~
5.5mm。
In wash mill described in the test method of this evaluation detergent decontamination effect, washing container is an open appearance
Device, for containing detergent solution；Washing container is container made of transparent material, convenient for observing the decontamination effect of detergent solution
Fruit；Washing container can be made of glass or plastics；The shape of washing container can be cup-shaped or bowl-shape.
Preferably, in the test method step 3) of this evaluation detergent decontamination effect, the dosage of detergent solution, which accounts for, is washed
Wash the 50%~90% of container total measurement (volume)；It is further preferred that the dosage of detergent solution accounts for the 70% of washing container total measurement (volume)
~85%.
Preferably, in the test method step 3) of this evaluation detergent decontamination effect, the dosage of detergent solution is
100mL~1000mL (mL indicates milliliter)；It is further preferred that the dosage of detergent solution is 400mL~550mL.
Preferably, in the test method step 3) of this evaluation detergent decontamination effect, the detergent body of detergent solution
Product concentration is 0.1%~10%；Detergent volumetric concentration in detergent solution can be prepared according to the case where detergent to be measured,
The dosage of concentrated cleaning can be on the low side, and the dosage of conventional detergent can be on the high side；Such as when detergent to be measured is concentrated cleaning
When, the detergent volumetric concentration of detergent solution is preferably 0.1%~1%；When detergent to be measured is conventional detergent, washing
The detergent volumetric concentration of agent solution is preferably 2%~5%.It in practical applications, can also be according to detergent product to be measured
The routine use of operation instruction or consumer are accustomed to prepare.
Preferably, it is this evaluation detergent decontamination effect test method step 3) in, wet concentration from deionized water, originally
Water, distilled water or pure water；In some preferred embodiments, wet concentration is from deionized water or tap water.
It, can be first by water during the test method step 3) of this evaluation detergent decontamination effect prepares detergent solution
It is added in washing container, adds detergent to be measured and be stirred；Either first detergent to be measured is added in washing container, then
Water is added to be stirred；Or be that water and detergent to be measured are added in washing container simultaneously, it is stirred for mixing；Some excellent
In the embodiment of choosing, it is first to add water in washing container, adds detergent to be measured and be stirred.
In the test method of this evaluation detergent decontamination effect, detergent to be measured can be arbitrary fabric detergent.
Preferably, in the test method step 4) of this evaluation detergent decontamination effect, pollution fabric is fixed on washing
It is specifically in container: is fixed between two hollow locating pieces using the fixture of fixing piece by fabric is polluted, resuspends and washing
It washs in container；Further, suspension is vertical hanging, facilitates the entire pollution fabric surface of tester's observation.
In the test method step 4) of this evaluation detergent decontamination effect, refer to detergent solution submergence pollution fabric
The liquid level of detergent solution is higher than pollution fabric, is fully immersed in pollution fabric in detergent solution.
Preferably, in the test method step 4) of this evaluation detergent decontamination effect, the mixing speed of agitator treating is
300r/min~800r/min；It is further preferred that the mixing speed of agitator treating is 400r/min~600r/min.
Preferably, in the test method step 4) of this evaluation detergent decontamination effect, the time of agitator treating is 1 minute
~8 hours；It is further preferred that the time of agitator treating is 5 minutes~2 hours；In some specific embodiments, stirring
The time of washing is preferably 15~20 minutes, that is, decontamination effect of different detergent can be evaluated.
Preferably, in the test method step 4) of this evaluation detergent decontamination effect, fabric is polluted by visual observations
The spot situation that residual fabric is polluted after spot dropping situations and/or visual observations washing in washing process, evaluates detergent
Decontamination effect.
It is further preferred that the spot dropping situations in visual observations pollution fabric laundering process, can centainly wash
It is evaluated according to the dropping situations of spot in time, opinion rating significantly is fallen off by excellent to poor be divided into, had and slightly take off
It falls and nothing falls off.
It is further preferred that visual observations washing after pollute residual fabric spot situation, can according to washing before and wash
After washing pollute fabric stain color variation is evaluated, opinion rating by it is excellent to poor be divided into there were significant differences, have slightly
Difference and indifference.
It further illustrates, by the dropping situations of spot in visual observations washing process, falling off the time including spot is dirty
The degree that falls off of stain, the washing effect of the different detergent solutions to be measured of comparison, thus by the speed that falls off of comparison spot, washing
How much is remaining spot area afterwards, evaluates decontamination effect of different detergent.Such as under same test condition, spot
The time that falls off it is very fast, illustrate that the clean effect of the detergent to be measured is preferable；Conversely, the time that falls off of spot is slower, illustrate this
The clean effect of detergent to be measured is poor.Or the remaining amount of spot is less after washing, illustrates the decontamination of the detergent to be measured
Effect is preferable；Conversely, the remaining amount of spot is more after washing, illustrate that the clean effect of the detergent to be measured is poor.
Preferably, it is this evaluation detergent decontamination effect test method step 4) in, by decontamination effect of detergent by
Excellent to poor to be divided into A, B, C three-level, assessment method at different levels is as follows:
Determined with the removal rate X of spot, the calculation formula of X are as follows:
A grades: X > 30%；
B grades: 9% < X≤30%；
C grades: X≤9%.
The removal rate X of spot is calculated according to the spot variation of washing front and back.A~C grades of expression detergent decontaminations
Effect is successively successively decreased by excellent to poor, i.e. A grades of expression detergent clean effect is optimal, and C grades of expression detergent clean effects are worst.Its
In, A grades of correspondences are expressed as that there were significant differences；B grades of correspondences have been expressed as Light Difference；C grades of correspondences are expressed as indifference.
In the removal rate calculation formula of spot, the spot area before washing refers in step 1), pollutes the spot face of fabric
Product；Spot area after washing refers in step 4), and the spot area of residual fabric is polluted after washing.
Spot square measure can use cm2Or mm2It indicates.
It is after washing a period of time, to different detergent under identical wash time by the removal rate judgement of spot
Decontamination effect evaluated, such as in washing 15 minutes or after twenty minutes, decontamination effect of different detergent is evaluated.
Preferably, in the test method step 4) of this evaluation detergent decontamination effect, spot area is by spot
It is calculated after taking pictures, then after the spot in photo is carried out pixelation processing.Pixelation processing refers to be compareed with computer
Spot figure layer in piece is converted to corresponding processes pixel, that is, the dirt after the total pixel value of spot and washing before calculating separately washing
The total pixel value of stain.The common processing software in market can be selected in computer-processing software used, such as Adobe Photoshop.Picture
The unit of element is px.
Preferably, the test method step 4) of this evaluation detergent decontamination effect is to be tested at normal temperature.In order to
Accelerate observing effect, detergent solution can also be heated and observed.
The beneficial effects of the present invention are:
Test method of the invention have many advantages, such as it is intuitive, quick, easy to operate, convenient for show.Using survey of the invention
Method for testing, it can be estimated that the height of detergent dirt-removing power, show detergent decontamination effect, can also be declared with preliminary assessment containing
Protease, amylase detergent the effect of.
Specifically:
1) the present invention provides a kind of test methods of visual evaluation detergent decontamination effect, using the washing of special designing
Unit simulation Actual laundering process selects pollutant and fabric texture common in life, greasiness removal process is observed, according to dirt
Time, the speed to fall off and the degree to fall off that stain falls off, can visually observe out detergent in a short time and wash to spot
Wash effect, it can be estimated that the height of detergent dirt-removing power shows laundry detergent compositions decontamination effect.
2) the present invention provides a kind of test method of visual evaluation detergent decontamination effect, can preliminary assessment declare containing
Protease, amylase detergent the effect of.
Detailed description of the invention
Fig. 1 is the schematic diagram of test method wash mill of the present invention；
Fig. 2 is a kind of schematic diagram of specific wash mill；
Fig. 3 is the schematic diagram for polluting the fixed assembling of fabric；
Fig. 4 is the schematic diagram of embodiment wash mill；
Fig. 5 is that fabric figure is polluted made of different pollutants；
Fig. 6 is visual valuation with reference to figure；
Fig. 7 is fabric comparison diagram of the embodiment 1 using national standard detergent and commercial detergent A washing process；
Fig. 8 is the fabric comparison diagram after embodiment 1 is tested；
Fig. 9 is the fabric comparison diagram after embodiment 2 is tested；
Figure 10 is the fabric comparison diagram after embodiment 3 is tested.
Specific embodiment
Fig. 1 is the schematic diagram of test method wash mill of the present invention.In Fig. 1,1- fixing piece；2- washs container；3- stirring
Device；4- pollutes fabric；11- fixture；12- hollow locating piece.It is described as follows referring to Fig. 1, wash mill of the invention includes solid
Determine part 1, washing container 2 and blender 3.Fixing piece 1 is fixed for that will pollute fabric 4, is placed in washing container 2, washing is held
It is put into detergent solution in device 2 and submerges pollution fabric 4, detergent decontamination function is carried out by 3 agitator treating agent solution of blender
The test evaluation of effect.Specifically, fixing piece 1 includes a fixture 11 and two hollow locating pieces 12, pollution fabric 4 is clipped in two
It between a hollow locating piece 12, and is fixed in washing container with fixture 11, the spot of pollution fabric 4 is positioned at locating piece 12
Hollow position.
In a specific embodiment, the schematic diagram of wash mill is as shown in Figure 2.In Fig. 2,1- clip；2- washing
Container；3- magnetic stirring apparatus；4- pollutes fabric；5- annulus；6- rotor.There are two annulus 5, is transparent plastic hoop.Pass through
Pollution fabric 4 is fixed between two annulus by clip 1 and annulus 5, and is fixed in washing container 2.Pollute the fixed group of fabric
The schematic diagram of dress can be found in attached drawing 3.Detergent solution to be tested is added in washing container 2, and submerges detergent solution
Pollute fabric 4.It is placed with rotor 6 in washing container 2, is stirred using magnetic stirring apparatus 3.By solid by clip and annulus
It is fixed, pollution fabric can be made to keep well-pressed state in the swirling water current that stirring is formed, convenient for observation test effect.
The visible attached drawing 4 of wash mill schematic diagram used in following embodiment.In Fig. 4, left figure is the main view of wash mill
Figure, right figure are the top view of wash mill.Shown attached drawing is merely to illustrate a kind of specific implementation of the method for the present invention, this hair
Bright content is not limited only to the implementation illustrated in figure.
The contents of the present invention are described in further detail below by specific embodiment.Unless specifically indicated, real
Apply reagent, material involved in example, method is reagent commonly used in the art, material and method.
Pollutant used in following instance is described as follows:
Pollutant 1: pollutant 1 is starch pollutant, is selected from commercially available instant gruel class drink, main component is starch, is matched
Material includes water, white granulated sugar, red bean, wheat, mung bean, peanut, glutinous rice, barley, lotus seeds etc., is filtered with strainer, takes filtrate spare.
Pollutant 2: pollutant 2 is starch pollutant, reconstitutes class drink selected from commercially available, main component is starch, ingredient
It is dry etc. comprising red bean, Semen Coicis, inulin, jujube, it takes in 3 spoons (the about 30 grams) hot water for being added 170mL85 DEG C, stirs evenly, it is cold
But spare to room temperature.
Pollutant 3: pollutant 3 is albumen pollutant, is selected from commercially available dairy beverage, main component is albumen, ingredient
Comprising water, white granulated sugar, semen sojae atricolor, soybean, milk powder, vitamin etc., Kaifeng be can be used.
Detergent sample used in following instance is described as follows:
National standard detergent: main component referring to GB/T 13174-2008, " wash by dress material detergent detergency and circulation
Wash the measurement of performance " No. 1 modification list of national standard.
Commercial product A: main component be surfactant (polyethoxylated fatty alcohols, ethoxylated alkyl sulfate),
Protease, amylase, anti-stain redeposition agent, preservative, essence etc..
Commercial product B: main component be surfactant (polyethoxylated fatty alcohols, ethoxylated alkyl sulfate),
Protease, anti-stain redeposition agent, preservative, essence etc..
Commercial product C: main component is surfactant, citric acid, tea tree essence etc..
Commercial product D: main component is cocounut oil soap base, double ion surfactant, water Softening factor, essence etc..
Wherein, commercial product A and commercial product B is concentrated cleaning, and commercial product C, commercial product D and national standard are washed
Washing agent is conventional detergent.
Evaluation method in following instance is described as follows:
One, the evaluation method of stains on fabrics falling-off effect is polluted
Visual valuation, professional evaluator evaluate the dropping situations of spot in stipulated time section, evaluation by it is excellent extremely
Difference, which has been divided into, significantly to fall off, has and slightly fall off, without falling off.
Two, the remaining evaluation method of stains on fabrics is polluted
1) visual valuation, professional evaluator estimate before judgement is washed under fluorescent lamp and pollute stains on fabrics after washing
Color change evaluated, evaluation is divided into that there were significant differences, has Light Difference, indifference by excellent to poor.
2) the spot area before test pollution fabric washing and after washing, calculates greasiness removal rate X.
The corresponding relationship of visual valuation grade and greasiness removal rate can be shown in Table 1.
The corresponding relationship of table 1 visual valuation grade and greasiness removal rate
| Visual valuation | Indifference | There is Light Difference | There were significant differences |
| Corresponding greasiness removal rate | X≤9% | 9% < X≤30% | X > 30% |
| Grade | C grades | B grades | A grades |
Embodiment 1
1) 0.50 gram of pollutant 1 is weighed using Subtraction method, pollutant is uniformly applied to pure cotton pieces of cloth with rounded plastic stick
Upper (the wherein circle that pieces of cloth specification is 5 centimetres of diameter, spot are located at pieces of cloth center, are about 3 centimetres of diameter of circle), 45 DEG C of bakings
Aging 1 hour in case obtains soiled cotton；
2) 500 ml deionized waters are poured into the transparent glass that volume is 600 milliliters to wash in container, is put into rotor, opens
Magnetic stirring apparatus is opened, being adjusted to revolving speed is 500 revs/min, and detergent preparation detergent solution is added, and (concentrated cleaning dosage is 3
Milliliter, conventional detergent dosage are 15 milliliters)；
3) soiled cotton is placed among two transparent plastic annulus, clamps fixed dirty piece with clip, is put into detergent solution
The speed that spot falls off in 10~20 minutes sections, the time that record spot is eventually fallen out are washed in washing, observation；
4) it is compared with the result of washing after twenty minutes, evaluates, takes pictures, and go out to wash preceding picture with computer software statistics
After element and washing spot pixel number, and calculate the area ratio of residual stains, and then obtain greasiness removal rate；
5) continue washing to 2 hours, observation cloth on piece spot almost removes the time of (removal rate >=98%), if still
It does not completely remove, then evaluates, takes pictures, but still using the 20th minute removal rate as the characterization of detergent dirt-removing power.
Embodiment 2
1) 0.50 gram of pollutant 2 is weighed using Subtraction method, pollutant is uniformly applied to pure cotton pieces of cloth with rounded plastic stick
Upper (the wherein circle that pieces of cloth specification is 5 centimetres of diameter, spot are located at pieces of cloth center, are about 3 centimetres of diameter of circle), 45 DEG C of bakings
Aging 1 hour in case obtains soiled cotton；
2) 500 ml deionized waters are poured into the transparent glass that volume is 600 milliliters to wash in container, is put into rotor, opens
Magnetic stirring apparatus is opened, being adjusted to revolving speed is 600 revs/min, and detergent preparation detergent solution is added, and (concentrated cleaning dosage is 3
Milliliter, conventional detergent dosage are 15 milliliters)；
3) soiled cotton is placed among two transparent plastic annulus, clamps fixed dirty piece with clip, is put into detergent solution
The speed that spot falls off in 10~20 minutes sections, the time that record spot is eventually fallen out are washed in washing, observation；
4) it is compared with the result of washing after twenty minutes, evaluates, takes pictures, and go out to wash preceding picture with computer software statistics
After element and washing spot pixel number, and calculate the area ratio of residual stains, and then obtain greasiness removal rate；
5) continue washing to 2 hours, observation cloth on piece spot almost removes the time of (removal rate >=98%), if still
It does not completely remove, then evaluates, takes pictures, but still using the 20th minute removal rate as the characterization of detergent dirt-removing power.
Embodiment 3
1) pollutant 3 is drawn with suction pipe, 2 drops (about 0.07 gram) is added dropwise in 5 centimetres of diameter of pure cotton pieces of cloth center, 45 DEG C of bakings
Aging 1 hour in case obtains soiled cotton；
2) 500 ml deionized waters are poured into the transparent glass that volume is 600 milliliters to wash in container, is put into rotor, opens
Magnetic stirring apparatus is opened, being adjusted to revolving speed is 400 revs/min, and detergent preparation detergent solution is added, and (concentrated cleaning dosage is 3
Milliliter, conventional detergent dosage are 15 milliliters)；
3) soiled cotton is placed among two transparent plastic annulus, clamps fixed dirty piece with clip, is put into detergent solution
Washing, the time that record spot is eventually fallen out；
4) it is compared with the result after washing 15 minutes, evaluates, takes pictures, and go out to wash preceding picture with computer software statistics
After element and washing spot pixel number, and calculate the area ratio of residual stains, and then obtain greasiness removal rate；
5) continue washing to 2 hours, observation cloth on piece spot almost removes the time of (removal rate >=98%), if still
It does not completely remove, then evaluates, takes pictures, but still using the 15th minute removal rate as the characterization of detergent dirt-removing power.
Comparative example 1
1) 0.50 gram of pollutant 1 is weighed using Subtraction method, pollutant is uniformly applied to pure cotton pieces of cloth with rounded plastic stick
Upper (the wherein circle that pieces of cloth specification is 5 centimetres of diameter, spot are located at pieces of cloth center, are about 3 centimetres of diameter of circle), 45 DEG C of bakings
Aging 1 hour in case obtains soiled cotton；
2) soiled cotton is sewn on clean polyester-cotton blend on cloth, plastic tub is placed on after being removed the peel on balance, matching for soiled cotton will be sewed with
Cloth is put into basin, is added several polyester-cotton blend with cloth, is made 1.2 kilograms of final gross weight load capacity, be accurate to ± 10 grams；
3) after roller washing machine being set common washing procedure, gate is opened, the load of weighing is scattered with cloth, whole one
It rises in addition washing machine, after shutting gate, presses " beginning/pause " button, while by the detergent of weighing (national standard detergent
30 grams, commercial detergent is marked according to back suggests dosage) II magazine is poured into, and rinsed and burnt with the tap water that measuring cup measures 300 milliliters
Glass, the detergent for being sticked to wall of cup is rinsed well as far as possible in flushing process, completes washing-entire washing procedure of rinsing-dehydration.
After washing, gate is opened, the soiled cotton matched on cloth with cloth, after washing that taking-up is sewed with soiled cotton removes, and is put into clean enamel
In pallet, it is protected from light naturally dry；
4) observation comparison, take pictures, and with computer software statistics go out wash preceding pixel and wash after spot pixel number,
And the area ratio of residual stains is calculated, and then obtain removal rate.
Comparative example 2
1) Subtraction method is used, 0.50 gram of pollutant 2 is weighed, pollutant is uniformly applied to pure cotton pieces of cloth with rounded plastic stick
Upper (the wherein circle that pieces of cloth specification is 5 centimetres of diameter, spot are located at pieces of cloth center, are about 3 centimetres of diameter of circle), 45 DEG C of bakings
Aging 1 hour in case obtains soiled cotton；
2) soiled cotton is sewn on clean polyester-cotton blend on cloth, plastic tub is placed on after being removed the peel on balance, matching for soiled cotton will be sewed with
Cloth is put into basin, is added several polyester-cotton blend with cloth, is made 1.2 kilograms of final gross weight load capacity, be accurate to ± 10 grams；
3) after roller washing machine being set common washing procedure, gate is opened, the load of weighing is scattered with cloth, whole one
It rises in addition washing machine, after shutting gate, presses " beginning/pause " button, while by the detergent of weighing (national standard detergent
30 grams, commercial detergent is marked according to back suggests dosage) II magazine is poured into, and rinsed and burnt with the tap water that measuring cup measures 300 milliliters
Glass, the detergent for being sticked to wall of cup is rinsed well as far as possible in flushing process, completes washing-entire washing procedure of rinsing-dehydration.
After washing, gate is opened, the soiled cotton matched on cloth with cloth, after washing that taking-up is sewed with soiled cotton removes, and is put into clean enamel
In pallet, it is protected from light naturally dry；
4) observation comparison, take pictures, and with computer software statistics go out wash preceding pixel and wash after spot pixel number,
And the area ratio of residual stains is calculated, and then obtain removal rate.
Comparative example 3
1) pollutant 3 is drawn with suction pipe, 2 drops (about 0.07 gram) is added dropwise in 5 centimetres of diameter of pure cotton pieces of cloth center, 45 DEG C of bakings
Aging 1 hour in case obtains soiled cotton；
2) soiled cotton is sewn on clean polyester-cotton blend on cloth, plastic tub is placed on after being removed the peel on balance, matching for soiled cotton will be sewed with
Cloth is put into basin, is added several polyester-cotton blend with cloth, is made 1.2 kilograms of final gross weight load capacity, be accurate to ± 10 grams；
3) after roller washing machine being set common washing procedure, gate is opened, the load of weighing is scattered with cloth, whole one
It rises in addition washing machine, after shutting gate, presses " beginning/pause " button, while by the detergent of weighing (national standard detergent
30 grams, commercial detergent is marked according to back suggests dosage) II magazine is poured into, and rinsed and burnt with the tap water that measuring cup measures 300 milliliters
Glass, the detergent for being sticked to wall of cup is rinsed well as far as possible in flushing process, completes washing-entire washing procedure of rinsing-dehydration.
After washing, gate is opened, the soiled cotton matched on cloth with cloth, after washing that taking-up is sewed with soiled cotton removes, and is put into clean enamel
In pallet, it is protected from light naturally dry；
4) observation comparison, takes pictures, and after being gone out to wash preceding pixel with computer software statistics and washed pixel number, and count
The area ratio of residual stains is calculated, and then obtains removal rate.
Attached drawing 5 is that fabric figure is polluted made of different pollutants.Pollution fabric, the dirt of the contamination of pollutant 1 are illustrated in Fig. 5
The pollution fabric that object 2 is infected with and the pollution fabric that pollutant 3 is infected with are contaminated, dirt made from the pollutant 1 of embodiment 1 is respectively corresponded
Soiled cotton made from soiled cotton made from cloth, the pollutant 2 of embodiment 2 and the pollutant 3 of embodiment 3.
Attached drawing 6 is visual valuation with reference to figure.Original sample before the pollution fabric washing being infected with pollutant 1 is compared,
According to visually evaluating the fabric after washing, indifference is illustrated in Fig. 6, have Light Difference and there were significant differences three kinds
Evaluation result is with reference to figure.
The various embodiments described above and comparative example are selected to carry out test respectively, test is repeated 5 times every time, measures average value, as a result
It respectively corresponds and is listed in 2~table of table 7.
The test result of 2 embodiment 1 of table
The test result of 3 embodiment 2 of table
The test result of 4 embodiment 3 of table
The test result of 5 comparative example 1 of table
| Test item | National standard detergent | Commercial detergent A |
| Spot area before spot revolution mark/washing on pure cotton cloth after washing | 30% | 10% |
| After washing on pure cotton cloth spot removal rate | 70% | 90% |
| After washing on pure cotton cloth spot visual valuation result | There were significant differences | There were significant differences |
| After the washing of two sample rooms on pure cotton cloth spot visual valuation result | There were significant differences | There were significant differences |
The test result of 6 comparative example 2 of table
| Test item | National standard detergent | Commercial detergent A |
| Spot area before spot revolution mark/washing on pure cotton cloth after washing | 33% | 11% |
| After washing on pure cotton cloth spot removal rate | 67% | 89% |
| After washing on pure cotton cloth spot visual valuation result | There were significant differences | There were significant differences |
| After the washing of two sample rooms on pure cotton cloth spot visual valuation result | There were significant differences | There were significant differences |
The test result of 7 comparative example 3 of table
| Test item | National standard detergent | Commercial detergent A |
| Spot area before spot revolution mark/washing on pure cotton cloth after washing | 51% | 25% |
| After washing on pure cotton cloth spot removal rate | 49% | 75% |
| After washing on pure cotton cloth spot visual valuation result | There were significant differences | There were significant differences |
| After the washing of two sample rooms on pure cotton cloth spot visual valuation result | There were significant differences | There were significant differences |
Attached drawing 7 is fabric comparison diagram of the embodiment 1 using national standard detergent and commercial detergent A washing process.Fig. 7
It illustrates respectively using national standard detergent and commercial detergent A, in washing 5 minutes, 10 minutes, 15 minutes and 20 minutes
Afterwards, the dropping situations of the two spot in the process of washing produce apparent difference.It is compared under the identical testing time, city
It is more preferable than decontamination effect of national standard detergent to sell detergent A.
Attached drawing 8 is the fabric comparison diagram after embodiment 1 is tested.Attached drawing 9 is the fabric comparison diagram after embodiment 2 is tested.It is attached
Figure 10 is the fabric comparison diagram after embodiment 3 is tested.From Fig. 8~10 as it can be seen that in each embodiment, by using different detergent
After washing, the spot for polluting residual fabric is different, and the decontamination energy of different detergent can be shown by this test method
Power has differences.
It can be seen that by the washing test result of the embodiment and comparative example of table 2~7 using the method for the present invention and reality
Wash result has certain relevance, and comparative example method is complicated for operation, and can not observe the process that falls off of spot, not intuitively
It is also unsuitable for showing.And Fig. 7~10 are combined it is found that the time that can be fallen off from spot of scheme used in embodiment, the speed that falls off
With the degree to fall off, detergent can be visually observed out in a short time to the washing effect of spot, it can be estimated that detergent is gone
The height of dirty ability shows detergent decontamination effect.
By table 2~4 as can be seen that commercial detergent A has preferably removal effect, commercial detergent for desizing spot
A and B has preferably removal effect for protein stain, removal of the detergent for spot without protease, starch enzyme component
It is ineffective.The test result is consistent with product formula ingredient, illustrate this method can also preliminary assessment declare containing protease, form sediment
The effect of detergent of powder enzyme.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of test method for evaluating detergent decontamination effect, it is characterised in that: the following steps are included:
1) the pollution fabric of preparation spot contamination
By pollutant contamination in fabric surface, the pollution fabric of spot contamination is made；
2) prepare wash mill
Prepare wash mill, the wash mill includes fixing piece, blender and washing container；
3) detergent solution is prepared
Water and detergent to be measured are added in the washing container of wash mill, is stirred, obtains detergent solution；
4) test evaluation
Fabric will be polluted with the fixing piece of wash mill to be fixed in washing container, makes detergent solution submergence pollution fabric, so
After be followed by stirring and washing, observation pollution fabric spot situation of change, evaluate decontamination effect of detergent.
2. a kind of test method for evaluating detergent decontamination effect according to claim 1, it is characterised in that: step 1)
In, the mode that pollutant is infected with fabric is selected from one of coating, dip dyeing, dropwise addition or a variety of.
3. a kind of test method for evaluating detergent decontamination effect according to claim 2, it is characterised in that: step 1)
In, pollutant is selected from one of oil pollutant, starch pollutant, albumen pollutant or a variety of；The material of fabric is selected
From one of cotton, fiber crops, wool, silk, chemical fibre, blended or a variety of.
4. a kind of test method for evaluating detergent decontamination effect according to claim 1, it is characterised in that: step 1)
In, the spot that pollutant is formed is located at the center of fabric, and the area of spot accounts for the 10%~80% of the fabric gross area.
5. a kind of test method for evaluating detergent decontamination effect according to claim 1, it is characterised in that: described washes
It washs in device, any one of blender in magnetic stirring apparatus, cantilever blender；Fixing piece includes a fixture and two
Hollow locating piece.
6. a kind of test method for evaluating detergent decontamination effect according to claim 1, it is characterised in that: step 3)
In, the dosage of detergent solution is 100mL~1000mL, and the detergent volumetric concentration of detergent solution is 0.1%~10%.
7. a kind of test method for evaluating detergent decontamination effect according to claim 5, it is characterised in that: step 4)
In, by pollute fabric be fixed on washing container in be specifically: using fixing piece fixture will pollute fabric be fixed on two it is hollow
Locating piece between, resuspend washing container in.
8. a kind of test method for evaluating detergent decontamination effect according to claim 1, it is characterised in that: step 4)
In, the mixing speed of agitator treating is 300r/min~800r/min, and the time of agitator treating is 1 minute~8 hours.
9. a kind of test method for evaluating detergent decontamination effect according to claim 1, it is characterised in that: step 4)
In, pollution fabric is residual after polluting spot dropping situations and/or visual observations washing in fabric laundering process by visual observations
The spot situation stayed evaluates decontamination effect of detergent.
10. a kind of test method for evaluating detergent decontamination effect according to claim 9, it is characterised in that: step 4)
In, decontamination effect of detergent is divided into A, B, C three-level by excellent to poor, assessment method at different levels is as follows:
Determined with the removal rate X of spot, the calculation formula of X are as follows:
A grades: X > 30%；
B grades: 9% < X≤30%；
C grades: X≤9%.
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| CN114897108A (en) * | 2022-07-08 | 2022-08-12 | 浙江省标准化研究院(金砖国家标准化(浙江)研究中心、浙江省物品编码中心) | Biocidal market admission evaluation method and system |
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| CN114897108B (en) * | 2022-07-08 | 2022-09-13 | 浙江省标准化研究院(金砖国家标准化(浙江)研究中心、浙江省物品编码中心) | Biocidal market admission evaluation method and system |
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